in 2004, governor romney signed a permanent assault weapons ban in massachusetts and now candidate romney says he any new laws. >> we need a president to enforce current laws that create new ones that only serve to baffle lawful gun owners. >> reporter: so that's a yes. >> a lot of gun owners believe ak-47s belong in the hands of soldier, not the hands of criminals. >> reporter: the reason obama's yes has an asterisk, that in four years, no new gun control laws have been enacted. under obama's watch concealed weapons are now allowed on am track trains and in national parks. >> he's continued to pay lip service to those things but he hasn't shown real leadership pursuing those changes. >> reporter: yes, background checks have gotten more there or rogue under obama for people legally buying guns in gun shops. the big problem remains gun shows and the internet, specifically unlicensed dealers selling firearms to buyers with no background check needed. president obama has supported closing the gun show loophole in the past but the white house says his focus now is on existing laws. governor r